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| COMBINED LOOSENING BLASTING WITH ORIENTED BLAST?ING TO EXCAVATE INTERFERENTIAL STONEWORKS |
| Zheng Darong |
| Science and Techonology Research Institute,Tunnel Engineering Corporation of MOR |
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Abstract This paper introduces the practical examples of the controlled blastings for exca-vating the interferential stoneworks in the Zhuyuanba-Banchuyuan Section of the Bao-Cheng Double -frack Railway Line, Several difficult techonologic problems in the construction site and the relative measures are emphatically describde and discussed.
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Received: 26 April 1995
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1995, Vol. 12 
